Answer:
17. True
18. Backup
Step-by-step explanation:
Surfing the internet refers to going through various websites to find the different things that you want. This is also the same as browsing the internet. For this reason, both words can be used interchangeably to describe going to different websites on the internet.
When we store our data on alternative storage such as pen drives, hard disks and online storage services, we are backing up our data so that in the event that we lose access to the primary storage device, we will still have the data in those alternative storage devices and services.